"After he was born he was doing everything pretty normal and then at five weeks he had like a febrile seizure," Joe said.

Five-month-old Nate was taken to the University of Vermont Medical Center in Burlington where he was diagnosed with hemimegalencephaly. It's a rare condition where one half of the brain is abnormally larger than the other.

It causes seizures and oftentimes leads to mental retardation. Without surgery, he'd likely live only until about 3 years old.

"It felt like standing on the edge of a cliff and just waiting to fall off," Kristi said.

But online, Kristi found hope. She learned about a surgery, called a hemispherectomy, which would shut off the right side of Nate's brain and help with the seizures.

"It seemed like after that we needed to search for a place to get it done," Kristi said.

So they did. On March 4, Nate had the 13-hour operation at Boston Children's Hospital. Since then, Kristi said her baby boy has surprised everyone.

"They told us maybe it would take 80 percent of the seizures away. Right now, it's 100 percent. It's just over and over again he's 1 in a million and he's doing 1 in a million kind of things," Kristi said.

Kristi and Joe said Nate's medical bills have topped $1 million. Most are covered by health insurance, but he needs around-the-clock care and will likely be on medication for the rest of his life.

"I just spent $355 yesterday on three of them and he's on 11 medications so it adds up," Kristi said.

Kristi said the money from a GoFundMe page has helped. The parents are overwhelmed by the outpouring of support for their little boy.

"Pretty much the whole North Country has been following him since the day we were in Burlington," Joe said.

They couldn't have asked for a more perfect miracle.

"I tell Joe all the time we are raising one tough kid. He's really tough and it's just amazing," Kristi said.